| <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> |
| <html lang="en"> |
| <head> |
| <title>Source code</title> |
| <link rel="stylesheet" type="text/css" href="../../../../../../stylesheet.css" title="Style"> |
| </head> |
| <body> |
| <div class="sourceContainer"> |
| <pre><span class="sourceLineNo">001</span>/**<a name="line.1"></a> |
| <span class="sourceLineNo">002</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.2"></a> |
| <span class="sourceLineNo">003</span> * or more contributor license agreements. See the NOTICE file<a name="line.3"></a> |
| <span class="sourceLineNo">004</span> * distributed with this work for additional information<a name="line.4"></a> |
| <span class="sourceLineNo">005</span> * regarding copyright ownership. The ASF licenses this file<a name="line.5"></a> |
| <span class="sourceLineNo">006</span> * to you under the Apache License, Version 2.0 (the<a name="line.6"></a> |
| <span class="sourceLineNo">007</span> * "License"); you may not use this file except in compliance<a name="line.7"></a> |
| <span class="sourceLineNo">008</span> * with the License. You may obtain a copy of the License at<a name="line.8"></a> |
| <span class="sourceLineNo">009</span> *<a name="line.9"></a> |
| <span class="sourceLineNo">010</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.10"></a> |
| <span class="sourceLineNo">011</span> *<a name="line.11"></a> |
| <span class="sourceLineNo">012</span> * Unless required by applicable law or agreed to in writing, software<a name="line.12"></a> |
| <span class="sourceLineNo">013</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.13"></a> |
| <span class="sourceLineNo">014</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.14"></a> |
| <span class="sourceLineNo">015</span> * See the License for the specific language governing permissions and<a name="line.15"></a> |
| <span class="sourceLineNo">016</span> * limitations under the License.<a name="line.16"></a> |
| <span class="sourceLineNo">017</span> */<a name="line.17"></a> |
| <span class="sourceLineNo">018</span>package org.apache.hadoop.hbase.tool;<a name="line.18"></a> |
| <span class="sourceLineNo">019</span><a name="line.19"></a> |
| <span class="sourceLineNo">020</span>import java.io.IOException;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import java.lang.reflect.Constructor;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.lang.reflect.InvocationTargetException;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.lang.reflect.Method;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span><a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import org.apache.hadoop.conf.Configuration;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import org.apache.hadoop.mapred.JobConf;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import org.apache.hadoop.mapred.MiniMRCluster;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import org.apache.hadoop.mapreduce.Job;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import org.apache.hadoop.mapreduce.JobContext;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import org.apache.hadoop.mapreduce.JobID;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span><a name="line.31"></a> |
| <span class="sourceLineNo">032</span>/**<a name="line.32"></a> |
| <span class="sourceLineNo">033</span> * This class provides shims for HBase to interact with the Hadoop 1.0.x and the<a name="line.33"></a> |
| <span class="sourceLineNo">034</span> * Hadoop 0.23.x series.<a name="line.34"></a> |
| <span class="sourceLineNo">035</span> *<a name="line.35"></a> |
| <span class="sourceLineNo">036</span> * NOTE: No testing done against 0.22.x, or 0.21.x.<a name="line.36"></a> |
| <span class="sourceLineNo">037</span> */<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>abstract public class MapreduceTestingShim {<a name="line.38"></a> |
| <span class="sourceLineNo">039</span> private static MapreduceTestingShim instance;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span> private static Class[] emptyParam = new Class[] {};<a name="line.40"></a> |
| <span class="sourceLineNo">041</span><a name="line.41"></a> |
| <span class="sourceLineNo">042</span> static {<a name="line.42"></a> |
| <span class="sourceLineNo">043</span> try {<a name="line.43"></a> |
| <span class="sourceLineNo">044</span> // This class exists in hadoop 0.22+ but not in Hadoop 20.x/1.x<a name="line.44"></a> |
| <span class="sourceLineNo">045</span> Class c = Class<a name="line.45"></a> |
| <span class="sourceLineNo">046</span> .forName("org.apache.hadoop.mapreduce.task.TaskAttemptContextImpl");<a name="line.46"></a> |
| <span class="sourceLineNo">047</span> instance = new MapreduceV2Shim();<a name="line.47"></a> |
| <span class="sourceLineNo">048</span> } catch (Exception e) {<a name="line.48"></a> |
| <span class="sourceLineNo">049</span> instance = new MapreduceV1Shim();<a name="line.49"></a> |
| <span class="sourceLineNo">050</span> }<a name="line.50"></a> |
| <span class="sourceLineNo">051</span> }<a name="line.51"></a> |
| <span class="sourceLineNo">052</span><a name="line.52"></a> |
| <span class="sourceLineNo">053</span> abstract public JobContext newJobContext(Configuration jobConf)<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> throws IOException;<a name="line.54"></a> |
| <span class="sourceLineNo">055</span><a name="line.55"></a> |
| <span class="sourceLineNo">056</span> abstract public Job newJob(Configuration conf) throws IOException;<a name="line.56"></a> |
| <span class="sourceLineNo">057</span><a name="line.57"></a> |
| <span class="sourceLineNo">058</span> abstract public JobConf obtainJobConf(MiniMRCluster cluster);<a name="line.58"></a> |
| <span class="sourceLineNo">059</span><a name="line.59"></a> |
| <span class="sourceLineNo">060</span> abstract public String obtainMROutputDirProp();<a name="line.60"></a> |
| <span class="sourceLineNo">061</span><a name="line.61"></a> |
| <span class="sourceLineNo">062</span> public static JobContext createJobContext(Configuration jobConf)<a name="line.62"></a> |
| <span class="sourceLineNo">063</span> throws IOException {<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> return instance.newJobContext(jobConf);<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> }<a name="line.65"></a> |
| <span class="sourceLineNo">066</span><a name="line.66"></a> |
| <span class="sourceLineNo">067</span> public static JobConf getJobConf(MiniMRCluster cluster) {<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> return instance.obtainJobConf(cluster);<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> }<a name="line.69"></a> |
| <span class="sourceLineNo">070</span><a name="line.70"></a> |
| <span class="sourceLineNo">071</span> public static Job createJob(Configuration conf) throws IOException {<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> return instance.newJob(conf);<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> }<a name="line.73"></a> |
| <span class="sourceLineNo">074</span><a name="line.74"></a> |
| <span class="sourceLineNo">075</span> public static String getMROutputDirProp() {<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> return instance.obtainMROutputDirProp();<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> }<a name="line.77"></a> |
| <span class="sourceLineNo">078</span><a name="line.78"></a> |
| <span class="sourceLineNo">079</span> private static class MapreduceV1Shim extends MapreduceTestingShim {<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> @Override<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> public JobContext newJobContext(Configuration jobConf) throws IOException {<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> // Implementing:<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> // return new JobContext(jobConf, new JobID());<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> JobID jobId = new JobID();<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> Constructor<JobContext> c;<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> try {<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> c = JobContext.class.getConstructor(Configuration.class, JobID.class);<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> return c.newInstance(jobConf, jobId);<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> } catch (Exception e) {<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> throw new IllegalStateException(<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> "Failed to instantiate new JobContext(jobConf, new JobID())", e);<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> }<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> }<a name="line.93"></a> |
| <span class="sourceLineNo">094</span><a name="line.94"></a> |
| <span class="sourceLineNo">095</span> @Override<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> public Job newJob(Configuration conf) throws IOException {<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> // Implementing:<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> // return new Job(conf);<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> Constructor<Job> c;<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> try {<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> c = Job.class.getConstructor(Configuration.class);<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> return c.newInstance(conf);<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> } catch (Exception e) {<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> throw new IllegalStateException(<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> "Failed to instantiate new Job(conf)", e);<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> }<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> }<a name="line.107"></a> |
| <span class="sourceLineNo">108</span><a name="line.108"></a> |
| <span class="sourceLineNo">109</span> @Override<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> public JobConf obtainJobConf(MiniMRCluster cluster) {<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> if (cluster == null) return null;<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> try {<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> Object runner = cluster.getJobTrackerRunner();<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> Method meth = runner.getClass().getDeclaredMethod("getJobTracker", emptyParam);<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> Object tracker = meth.invoke(runner, new Object []{});<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> Method m = tracker.getClass().getDeclaredMethod("getConf", emptyParam);<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> return (JobConf) m.invoke(tracker, new Object []{});<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> } catch (NoSuchMethodException nsme) {<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> return null;<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> } catch (InvocationTargetException ite) {<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> return null;<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> } catch (IllegalAccessException iae) {<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> return null;<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> }<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> }<a name="line.125"></a> |
| <span class="sourceLineNo">126</span><a name="line.126"></a> |
| <span class="sourceLineNo">127</span> @Override<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> public String obtainMROutputDirProp() {<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> return "mapred.output.dir";<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> }<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> }<a name="line.131"></a> |
| <span class="sourceLineNo">132</span><a name="line.132"></a> |
| <span class="sourceLineNo">133</span> private static class MapreduceV2Shim extends MapreduceTestingShim {<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> @Override<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> public JobContext newJobContext(Configuration jobConf) {<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> return newJob(jobConf);<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> }<a name="line.137"></a> |
| <span class="sourceLineNo">138</span><a name="line.138"></a> |
| <span class="sourceLineNo">139</span> @Override<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> public Job newJob(Configuration jobConf) {<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> // Implementing:<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> // return Job.getInstance(jobConf);<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> try {<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> Method m = Job.class.getMethod("getInstance", Configuration.class);<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> return (Job) m.invoke(null, jobConf); // static method, then arg<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> } catch (Exception e) {<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> e.printStackTrace();<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> throw new IllegalStateException(<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> "Failed to return from Job.getInstance(jobConf)");<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> }<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> }<a name="line.151"></a> |
| <span class="sourceLineNo">152</span><a name="line.152"></a> |
| <span class="sourceLineNo">153</span> @Override<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> public JobConf obtainJobConf(MiniMRCluster cluster) {<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> try {<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> Method meth = MiniMRCluster.class.getMethod("getJobTrackerConf", emptyParam);<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> return (JobConf) meth.invoke(cluster, new Object []{});<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> } catch (NoSuchMethodException nsme) {<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> return null;<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> } catch (InvocationTargetException ite) {<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> return null;<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> } catch (IllegalAccessException iae) {<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> return null;<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> }<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> }<a name="line.165"></a> |
| <span class="sourceLineNo">166</span><a name="line.166"></a> |
| <span class="sourceLineNo">167</span> @Override<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> public String obtainMROutputDirProp() {<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> // This is a copy of o.a.h.mapreduce.lib.output.FileOutputFormat.OUTDIR<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> // from Hadoop 0.23.x. If we use the source directly we break the hadoop 1.x compile.<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> return "mapreduce.output.fileoutputformat.outputdir";<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> }<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> }<a name="line.173"></a> |
| <span class="sourceLineNo">174</span>}<a name="line.174"></a> |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| </pre> |
| </div> |
| </body> |
| </html> |
